Question

three taps A B and C fills drum in 5 hours 15 hours and 20 hours respectively then if tab A and B are closed after 3 and half hours how much time will Tap c take to fill the remaining work

Answer 1

Hello Dear,

◆ Answer -

1 hr 20 min

◆ Explanation -

Taps A, B and C will fill 1/5, 1/15 and 1/20 part of drum.

In 3 1/2 hours, pary of drum filled is -

Drum filled = 3.5 × (1/5 + 1/15)

Drum filled = 14/15 part

Remaining 1 - 14/15 = 1/15th drum.

Time required to fill remaining drum by C is -

Time = (1/15) / (1/20)

Time = 4/3 hours

Time = 1 hr 20 min

Therefore, C will take 1 hr 20 min to fill remaining drum.

Thanks dear.